Suction cleaning device.



W. V. ORR.

SUCTION CLEANING DEVICE.

APPLICATION FILED SEPT. 27. 1915.

- Patented Jan. 2, 1917.

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W. V. ORR. SUCTION CLEANING DEVICE.

APPLICATION FILED SEPT. 27. 1915- Patented Jan. 2,1917.

2 SHEETSSHEET 2- Lam-@250 MTUF WILLIAIVI V. ORR, 0F CLEVELAND, OHIO.

SUCTION CLEANING DEVICE.

Application filed September 27, 1915.

To all whom it may concern Be it known that I, WILLIAM V. ORR, a citizen of the United States, residing at Cleveland, in the county of Guyahoga and State of Ohio, have invented a certain new and useful Improvement in Suction Cleaning Devices, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

This invention relates to suction cleaners and has for its object the provision of a de-- vice of this nature which shall eficiently take up and collect not only the dust and grit which adheres to floors and floor coverings, but also pieces of thread, lint, dressmakers scraps, matches, slips of paper and the like.

I am aware that rotating brushes, mechanical beaters, and such appliances have been employed for agitating such refuse and lifting it into the air stream, but my object is to dispense with such complicated and expensive devices, and so to design the nozzle that such refuse will be picked up by a properly directed air stream and elevated into the cleaner in a simple and reliable manner.

While I conceive that certain features of my invention might be of value in connection with a rotating brush or other movable agitating device, I have illustrated and prefer to use with my machine a form of fixed brush rigidly secured in the nozzle and serving not only to displace the carpet substance, but also to break up the entering air stream into a plurality of independent separate jets.

The essence of my invention consists in this, that the air entering under one lip of my improved nozzle is caused to blow against the opposite inclined lip in such fashion as to elevate thereon the foreign matters lying on the carpet, said wall being of a uniform moderate inclination whereby the air stream may elevate such refuse therealong without obstruction and so deliver it to the suction device. In .the performance of my said invention I preferably employ within the limits of the inlet mouth, a depending wall or partition located between the lips thereof but terminating a slight distance above the plane of saidlips, said wall being spaced from one of-said lips to define an inlet slit and from the other lip to define a brush receiving cavity; and in the preferred form of my invention the Specification of Letters Patent.

Patented Jan. 2, 191% Serial m. 52,786.

lip adjacent to said cavity is disposed at a higher level than the other lip so that air may enter beneath said first lip and pass beneath said wall and finally be discharged toward the face of said other lip.

In the drawings accompanying and forming a part of this application I have illustrated one embodiment of my invention and Describing the parts by reference char acters 1 represents the fan casing of a portable suction cleaner, 2 the motor casing axially secured thereto, and 3 the collecting nozzle which projects obliquely forwardly from the opposite end of the fan casing, said nozzle increasing in width as it departs from said fan casing and being formed at its extremity with a pair of spaced parallel lips 43, 5 defining an elongated inletmouth. Said nozzle is supported by means of suitable rollers 66, and the rearward part of the machine by means of a suitable roller 7, the former rollers being preferably vertically adjustable as by being mounted on the crank-shaped rock-shaft 8 which may be adjusted to any desired height by moving the lever 9. The casing is moved about as occasion demands by means of the usual handle 10, and the dust and dirt collected is received in a suitable bag 11 secured to an outlet neck 12 projecting from the periphery of the fan chamber. In this type of cleaner the fan 13 is supported with its axis horizontal as shown in Fig. 4.

While I have chosen here for purposes of illustration a cleaner of the horizontal type it is not with the idea of limiting myself thereto.

The interior of the nozzle 3 is formed with one or more passageways establishing communication between the inlet mouth and the opening 15 in the end wall of the fan chamber. The lower wallof said nozzle consists of a substantially flat plate 16 whose external lines define a truncated triangle of which the lip 5 forms the base. The upper wall of the nozzle consists of a similarly shaped plate 17, whose base part is caused to proj ect for a distance substantially horizontally in front of and above the hp 5 as shown at 18 before terminating in the depending skirt 19 which ends in the lip t. This horizontal ledge 18 defines a chamber extending from end to end of the suction mouth, and in this chamber between the two lips, I locate a wall 20, the same being here shown as a kind of hollow sheet metal bead having a fiat top spaced from the plane. of the lips f, 5 and having at one side the inclined portion 21 projecting inside the wall 17 so as practically to form a continuation thereof and having the other side bent abruptly as shown at 22 and spaced from the skirt 19 to form a brush receiving cavity. The space between the lip 5 and the incline 21 T have termed the suction slot, the same being in the form of a narrow passage, which extends from end to end of the suction mouth of the nozzle. From this slot to the opening 15 the walls 16 and 17 diverge, so as largely to compensate for their taper laterally. Also I have shown said walls asconnected by a transverse wall 2 L forming an oval symmetrical defiector extending alongthe longitudinal axis of the nozzle from a point adjacent the slot to a. point adjacent the opening 15. In the present embodiment this wall 24 defines an open recess formed in the bottom wall 16, its size andshape being so chosen as to prevent all obstructions and .sharp points and to maintain the cross-sectional area of the nozzle passageway substantially uniform throughout its length.

By referring to Fig. 4: wherein I have shown the cross sectional shape of the passageways at various points it will be seen that at the plane a each slot is long and narrow, becoming deeper and more rounded at the planes 6 and 0 until as it approaches closely to the fan it. assumes a distinct triangular shape as shown at d. The bottom of each passageway is disposed on a straight line as shown in Fig. 2 and the axes of the passages are indicated by the lines "e, e in Fig. 4:, which lines preferably pass through the center of the fan. This arrangement of the passageways collects the refuse into small compass inside a compact stream of air, thereby rendering the cleaner unusually eflicient.

The lip at being elevated slightly above the lip 5 the resultis toset up a shallow horizontal sheet of air moving-along the top of the carpet and directed toward the lip 5 which is inclined upwardly at a uniform angle as heretofore stated. The adjustability of the supporting wheels permits the edge of the .lip 5 to be set at a level just beneath the top of the carpet nap so that debris lying on the carpet will be caught upon this lip as upon a dust an, after which the air stream will elevate 1t into the fan chamber.

In Figs. 2 and 3 I have illustrated abrush secured in the nozzle and comprising a solid base member 25 adapted to fit snugly in'the necessary by the prior state of the art.

Having thus described my invention, what I claim is 1. In a suction cleaner, a collecting nozzle having converging upper and lower walls, and diverging side walls, all terminating in an elongated mouth, and a symmetrical deflector extending between the upper and lower walls, behind said mouth, said defiector being shaped to form two passages in said nozzle, each passage being of substantially the same cross-sectional area throughout its length.

2. In a suction cleaner, a collecting nozzle comprising upper and lower converging walls terminating in a pair of spaced parallel lips defining an inlet month, one of said lips being lower than the other lip and having its upper-surface inclined away from said other lip, in combination with a plate extending rearwardly from the upper lip, above said inlet month, said plate having a rearwardly and upwardly inclined portion projecting within said upper wall and forming a continuationthereof.

3. In a suction cleaner, a collecting nozzle terminating in a pair ofspaced parallel lips zle terminating in upper and lower lips defining an inlet mouth, a dividing wall projecting from the upper lip over said mouth and spaced from the lower lip to form a suction slot and from the upper lip to define a brush chamber, said wall terminating at a point in the nozzle behind saidinlet mouth, and a brush secured in said brush chamber and projecting. downwardly beyond said wall, at the edge of said mouth. 5. In a suctlon -cleaner,-a noz'zlehaving upperand lower walls terminating at one end in a narrowsuction slot, and at the opposite endin an outlet opening, said walls .diverging from each other as they recede from said slot and the sides of said nozzle transverse to said. slot converging toward each other as they recede from said slot, and 13 a hollow deflector located between said slot and the outlet from said nozzle and symmet rically about the longitudinal axis of said nozzle, said deflector having an angle presented toward said slot at substantially the middle point thereof and having at its opposite part an angle presented toward said outlet, the cross sectional area of the air passage within said nozzle remaining substantially constant from point to point, the axis of said air passage lying in a straight line which intersects the center of the outlet.

6. In a suction cleaner, a fan chamber having a central inlet opening and a pair of spaced passageways leading from said open- 15 mg, said passageways merging together at a distance from said opening to form a common suction slot, the width of each passageway increasing and its depth decreasing as it recedes from said inlet opening while 20 keeping its cross sectional area substantially uniform.

In testimony whereof, I hereunto afiix my signature.

WILLIAM V. ORR. 

